| Particle-Based Iterative Blind Receiver for Orthogonal Frequency- Division Multiplexing with Frequency Offset |
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| 引用本文： | 苏泳涛 张贤达 高秋彬 丁子哲. Particle-Based Iterative Blind Receiver for Orthogonal Frequency- Division Multiplexing with Frequency Offset[J]. 清华大学学报, 2007, 12(6): 678-683. DOI: 10.1016/S1007-0214(07)70175-X |
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| 作者姓名： | 苏泳涛 张贤达 高秋彬 丁子哲 |
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| 作者单位： | Department of Automation Tsinghua University，Department of Automation Tsinghua University，Department of Automation Tsinghua University，Department of Automation Tsinghua University，Beijing 100084 China，Beijing 100084 China，Beijing 100084 China，Beijing 100084 China |
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| 基金项目： | 清华大学智能技术与系统国家重点实验室开放性基金;国家自然科学基金 |
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| 摘 要： | Orthogonal frequency-division multiplexing （OFDM） systems are sensitive to carrier frequency offset （CFO） which introduces intercarder interference and significantly degrades system performance. This paper describes an iterative blind receiver consisting of a sequential Monte Carlo detector, a CFO estimator, and a compensator to reduce intercarrier interference. The framework is of low complexity due to the separation of tasks in a joint detection problem. In addition, the CFO estimator utilizes soft output of the sequential Monte Carlo detector, which reduces the information loss caused by hard decisions and can obtain the CFO estimate in only one OFDM symbol. Simulation results demonstrate the effectiveness of the algorithm.
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| 关 键 词： | 多路技术 接受器 正交实验 载波 |
| 收稿时间： | 2007-01-10 |
| 修稿时间： | 2007-06-25 |
Particle-Based Iterative Blind Receiver for Orthogonal Frequency-Division Multiplexing with Frequency Offset |
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| Yongtao Su, ,#xcf;,#xcf;,#xdb;, Xianda Zhang, ,#xf;,#xd;,#xfbe;, Qiubin Gao, ,#xad;,#xcb;,#xfc;,Zizhe Ding, ,#xe;,#xb;,#xf;. Particle-Based Iterative Blind Receiver for Orthogonal Frequency-Division Multiplexing with Frequency Offset[J]. Tsinghua Science and Technology, 2007, 12(6): 678-683. DOI: 10.1016/S1007-0214(07)70175-X |
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| Authors: | Yongtao Su, Ï Ï Û , Xianda Zhang,
྾ , Qiubin Gao, Ë ü ,Zizhe Ding, |
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| Affiliation: | aDepartment of Automation, Tsinghua University, Beijing 100084, China |
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| Abstract: | Orthogonal frequency-division multiplexing (OFDM) systems are sensitive to carrier frequency off- set (CFO) which introduces intercarrier interference and significantly degrades system performance. This paper describes an iterative blind receiver consisting of a sequential Monte Carlo detector, a CFO estimator, and a compensator to reduce intercarrier interference. The framework is of low complexity due to the sepa- ration of tasks in a joint detection problem. In addition, the CFO estimator utilizes soft output of the sequen- tial Monte Carlo detector, which reduces the information loss caused by hard decisions and can obtain the CFO estimate in only one OFDM symbol. Simulation results demonstrate the effectiveness of the algorithm. |
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| Keywords: | sequential Monte Carlo (SMC) blind receiver orthogonal frequency division multiplexing (OFDM) carrier frequency offset (CFO) |
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